Viewing Station: PA-CH-27 : Chadds Ford 3.1 SW
Aug 11, 2013 - Aug 21, 20264,695 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.71"
August 1-21, 2026(20 of 21 days covered by obs)
NOAA Normal
2.99"
Departure from Normal
1.72" : 157% of Normal
Year-To-Date: 29.27"
Jan 1 to Aug 21, 2026(232 of 233 days covered by obs)
NOAA Normal
29.99"
Departure from Normal
-0.72" : 98% of Normal
Water Year-To-Date: 37.09"
Oct 1, 2025 to Aug 21, 2026(324 of 325 days covered by obs)
NOAA Normal
41.63"
Departure from Normal
-4.54" : 89% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.46
3.53
-0.07
Feb
2.82
2.88
-0.06
Mar
4.29
4.39
-0.10
Apr
3.73
3.69
0.04
May
3.72
3.86
-0.14
Jun
4.40
4.47
-0.07
Jul
4.58
4.69
-0.11
Aug
4.42
4.55
-0.13
Sep
4.78
4.93
-0.15
Oct
4.13
4.25
-0.12
Nov
3.41
3.27
0.14
Dec
4.10
4.33
-0.23
47.84
48.84
-1.00